2 * net/tipc/core.c: TIPC module code
4 * Copyright (c) 2003-2006, 2013, Ericsson AB
5 * Copyright (c) 2005-2006, 2010-2013, Wind River Systems
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9 * modification, are permitted provided that the following conditions are met:
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15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the names of the copyright holders nor the names of its
17 * contributors may be used to endorse or promote products derived from
18 * this software without specific prior written permission.
20 * Alternatively, this software may be distributed under the terms of the
21 * GNU General Public License ("GPL") version 2 as published by the Free
22 * Software Foundation.
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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34 * POSSIBILITY OF SUCH DAMAGE.
37 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
40 #include "name_table.h"
47 #include <linux/module.h>
49 /* configurable TIPC parameters */
50 unsigned int tipc_net_id __read_mostly;
51 int sysctl_tipc_rmem[3] __read_mostly; /* min/default/max */
53 static int __net_init tipc_init_net(struct net *net)
55 struct tipc_net *tn = net_generic(net, tipc_net_id);
60 tn->mon_threshold = TIPC_DEF_MON_THRESHOLD;
61 get_random_bytes(&tn->random, sizeof(int));
62 INIT_LIST_HEAD(&tn->node_list);
63 spin_lock_init(&tn->node_list_lock);
65 err = tipc_sk_rht_init(net);
69 err = tipc_nametbl_init(net);
73 INIT_LIST_HEAD(&tn->dist_queue);
75 err = tipc_bcast_init(net);
82 tipc_nametbl_stop(net);
84 tipc_sk_rht_destroy(net);
89 static void __net_exit tipc_exit_net(struct net *net)
93 /* Make sure the tipc_net_finalize_work stopped
94 * before releasing the resources.
96 flush_scheduled_work();
98 tipc_nametbl_stop(net);
99 tipc_sk_rht_destroy(net);
102 static struct pernet_operations tipc_net_ops = {
103 .init = tipc_init_net,
104 .exit = tipc_exit_net,
106 .size = sizeof(struct tipc_net),
109 static struct pernet_operations tipc_topsrv_net_ops = {
110 .init = tipc_topsrv_init_net,
111 .exit = tipc_topsrv_exit_net,
114 static int __init tipc_init(void)
118 pr_info("Activated (version " TIPC_MOD_VER ")\n");
120 sysctl_tipc_rmem[0] = RCVBUF_MIN;
121 sysctl_tipc_rmem[1] = RCVBUF_DEF;
122 sysctl_tipc_rmem[2] = RCVBUF_MAX;
124 err = tipc_register_sysctl();
128 err = register_pernet_device(&tipc_net_ops);
132 err = tipc_socket_init();
136 err = register_pernet_device(&tipc_topsrv_net_ops);
138 goto out_pernet_topsrv;
140 err = tipc_bearer_setup();
144 err = tipc_netlink_start();
148 err = tipc_netlink_compat_start();
150 goto out_netlink_compat;
152 pr_info("Started in single node mode\n");
158 tipc_bearer_cleanup();
160 unregister_pernet_device(&tipc_topsrv_net_ops);
164 unregister_pernet_device(&tipc_net_ops);
166 tipc_unregister_sysctl();
168 pr_err("Unable to start in single node mode\n");
172 static void __exit tipc_exit(void)
174 tipc_netlink_compat_stop();
176 tipc_bearer_cleanup();
177 unregister_pernet_device(&tipc_topsrv_net_ops);
179 unregister_pernet_device(&tipc_net_ops);
180 tipc_unregister_sysctl();
182 pr_info("Deactivated\n");
185 module_init(tipc_init);
186 module_exit(tipc_exit);
188 MODULE_DESCRIPTION("TIPC: Transparent Inter Process Communication");
189 MODULE_LICENSE("Dual BSD/GPL");
190 MODULE_VERSION(TIPC_MOD_VER);